package me.windleafy.kity.android.wiget.edittext;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.CycleInterpolator;
import android.view.animation.TranslateAnimation;

import androidx.appcompat.widget.AppCompatEditText;

import java.util.Arrays;

import me.windleafy.kity.R;
import me.windleafy.kity.android.utils.LogKit;

/**
 * 左侧图标必须使用drawableLeft，不能使用drawableStart
 */
public class ClearEditText extends AppCompatEditText implements View.OnFocusChangeListener, TextWatcher {
        /**
         * 删除按钮的引用
         */
        private Drawable mClearDrawable;
        /**
         * 控件是否有焦点
         */
        private boolean hasFoucs;

        public ClearEditText(Context context) {
            this(context, null);
        }

        public ClearEditText(Context context, AttributeSet attrs) {
            //这里构造方法也很重要，不加这个很多属性不能再XML里面定义
            this(context, attrs, android.R.attr.editTextStyle);
        }

        public ClearEditText(Context context, AttributeSet attrs, int defStyle) {
            super(context, attrs, defStyle);
            init();
        }


        private void init() {
            //获取EditText的DrawableRight,假如没有设置我们就使用默认的图片
    //        if (getCompoundDrawables()[0] == null) {
    //        LogKit.e("getCompoundDrawables() = " + Arrays.toString(getCompoundDrawables()));
    //        }
            mClearDrawable = getCompoundDrawables()[2];
            if (mClearDrawable == null) {
    //          throw new NullPointerException("You can add drawableRight attribute in XML");
                mClearDrawable = getResources().getDrawable(R.mipmap.icon_close_tiny);
            }

            /**
             * setBounds(x,y,width,height);
             * x:组件在容器X轴上的起点
             * y:组件在容器Y轴上的起点
             * width:组件的长度
             * height:组件的
             */

            mClearDrawable.setBounds(-30, 0, 30, 60);
            //默认设置隐藏图标
            setClearIconVisible(false);
            //设置焦点改变的监听
            setOnFocusChangeListener(this);
            //设置输入框里面内容发生改变的监听
            addTextChangedListener(this);
        }

        public void setClearIcon(int resId){
            mClearDrawable = getResources().getDrawable(resId);
        }


        /**
         * 因为我们不能直接给EditText设置点击事件，所以我们用记住我们按下的位置来模拟点击事件
         * 当我们按下的位置 在  EditText的宽度 - 图标到控件右边的间距 - 图标的宽度  和
         * EditText的宽度 - 图标到控件右边的间距之间我们就算点击了图标，竖直方向就没有考虑
         */
        @Override
        public boolean onTouchEvent(MotionEvent event) {
            boolean touchable = event.getX() > (getWidth() - getTotalPaddingRight())
                    && (event.getX() < ((getWidth() - getPaddingRight())));

            if (touchable) {
                if (event.getAction() == MotionEvent.ACTION_UP) {
                    if (getCompoundDrawables()[2] != null) {
                        this.setText("");
                        if (mOnClickListener != null)
                            mOnClickListener.onClick(this);
                    }
                }
                return true;
            }


            return super.onTouchEvent(event);
        }

        /**
         * 当ClearEditText焦点发生变化的时候，判断里面字符串长度设置清除图标的显示与隐藏
         */
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            this.hasFoucs = hasFocus;
            if (hasFocus) {
                setClearIconVisible(getText().length() > 0);
            } else {
                setClearIconVisible(false);
            }
        }


        /**
         * 设置清除图标的显示与隐藏，调用setCompoundDrawables为EditText绘制上去
         *
         * @param visible
         */
        protected void setClearIconVisible(boolean visible) {
            Drawable right = visible ? mClearDrawable : null;
            setCompoundDrawables(getCompoundDrawables()[0],
                    getCompoundDrawables()[1], right, getCompoundDrawables()[3]);
        }


        /**
         * 当输入框里面内容发生变化的时候回调的方法
         */
        @Override
        public void onTextChanged(CharSequence s, int start, int count,
                                  int after) {
            if (hasFoucs) {
                setClearIconVisible(s.length() > 0);
            }
        }

        @Override
        public void beforeTextChanged(CharSequence s, int start, int count,
                                      int after) {

        }

        @Override
        public void afterTextChanged(Editable s) {

        }


        /**
         * 设置晃动动画
         */
        public void setShakeAnimation() {
            this.setAnimation(shakeAnimation(5));
        }


        /**
         * 晃动动画
         *
         * @param counts 1秒钟晃动多少下
         * @return
         */
        public static Animation shakeAnimation(int counts) {
            Animation translateAnimation = new TranslateAnimation(0, 10, 0, 0);
            translateAnimation.setInterpolator(new CycleInterpolator(counts));
            translateAnimation.setDuration(1000);
            return translateAnimation;
        }


        View.OnClickListener mOnClickListener;

        public void setOnCancelClickListener(View.OnClickListener listener) {
            mOnClickListener = listener;
        }
}
